|A service of the U.S. National Library of Medicine®|
On this page:
Reviewed September 2015
What is the official name of the TSHB gene?
The official name of this gene is “thyroid stimulating hormone, beta.”
TSHB is the gene's official symbol. The TSHB gene is also known by other names, listed below.
Read more about gene names and symbols on the About page.
What is the normal function of the TSHB gene?
The TSHB gene provides instructions for one piece (subunit) of a hormone called thyroid stimulating hormone (TSH). Thyroid stimulating hormone consists of two subunits called alpha and beta. The TSHB gene provides instructions for making the beta subunit. The alpha and beta subunits are bound together to produce the active form of the hormone. A particular segment of the beta subunit, known as the buckle or seatbelt, wraps around the alpha subunit to form the active hormone. This seatbelt region also helps stabilize the hormone's structure.
Thyroid stimulating hormone is made in the pituitary gland, a gland at the base of the brain. This hormone plays an important role in the growth and function of the thyroid gland, a butterfly-shaped tissue in the lower neck. It also stimulates the production of thyroid hormones, which play a critical role in regulating growth, brain development, and the rate of chemical reactions in the body (metabolism). The pituitary gland monitors levels of thyroid hormones. When thyroid hormone levels are too low, the pituitary gland releases thyroid stimulating hormone into the bloodstream. Thyroid stimulating hormone, in turn, signals increased thyroid gland growth and production of thyroid hormones.
Does the TSHB gene share characteristics with other genes?
The TSHB gene belongs to a family of genes called endogenous ligands (endogenous ligands).
A gene family is a group of genes that share important characteristics. Classifying individual genes into families helps researchers describe how genes are related to each other. For more information, see What are gene families? in the Handbook.
How are changes in the TSHB gene related to health conditions?
Where is the TSHB gene located?
Cytogenetic Location: 1p13
Molecular Location on chromosome 1: base pairs 115,029,824 to 115,034,309
The TSHB gene is located on the short (p) arm of chromosome 1 at position 13.
More precisely, the TSHB gene is located from base pair 115,029,824 to base pair 115,034,309 on chromosome 1.
See How do geneticists indicate the location of a gene? in the Handbook.
Where can I find additional information about TSHB?
You and your healthcare professional may find the following resources about TSHB helpful.
You may also be interested in these resources, which are designed for genetics professionals and researchers.
What other names do people use for the TSHB gene or gene products?
See How are genetic conditions and genes named? in the Handbook.
Where can I find general information about genes?
The Handbook provides basic information about genetics in clear language.
These links provide additional genetics resources that may be useful.
What glossary definitions help with understanding TSHB?
You may find definitions for these and many other terms in the Genetics Home Reference Glossary.
See also Understanding Medical Terminology.
References (8 links)
The resources on this site should not be used as a substitute for professional medical care or advice. Users seeking information about a personal genetic disease, syndrome, or condition should consult with a qualified healthcare professional. See How can I find a genetics professional in my area? in the Handbook.